Hook spanners

Exact spanner radius reduces the risk of nut damage

The HN series includes 15 different size hook spanners based on the DIN 1810 standard. The hook spanners are designed for use with SKF KM nuts as well as any other KM nuts conforming to the DIN 981 standard. Additionally, they are suitable for use with N, AN, KMK, KMFE and KMT as well as nuts manufactured according to the DIN 1804 standard.
  • Minimises the risk of shaft and nut damage
  • Plastic handle is oil, grease and dirt resistant to provide a better grip
  • The plastic handle minimises direct metal to skin contact, reducing the risk of corrosion in the handle area
  • Hole in the spanner's handle facilitates easy storage
  • Designation of spanner representing its size is laser-engraved allowing easy identification and selection
Technical data
Designation
Spanner design
DIN 1810
Outer diameter
lock nut
 
mm
mm
in.
HN 0
 
16–20
0.6–0.8
HN 1
Ø20–Ø22
20–22
0.8–0.9
HN 2-3
Ø25–Ø28
25–28
1.0–1.1
HN 4
Ø30–Ø32
30–32
1.2–1.3
HN 5-6
 
38–45
1.5–1.8
HN 7
Ø52–Ø55
52–55
2.0–2.2
HN 8-9
 
58–65
2.3–2.6
HN 10-11
Ø68–Ø75
68–75
2.7–3.0
HN 12-13
Ø80–Ø90
80–90
3.1–3.5
HN 14
 
92
3.6
HN 15
Ø95–Ø100
95–100
3.7–3.9
HN 16
 
105
4.1
HN 17
Ø110–Ø115
110–115
4.3–4.5
HN 18-20
Ø120–Ø130
120–130
4.7–5.1
HN 21-22
Ø135–Ø145
135–145
5.3–5.7
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